<h1>copyleft</h1>
<p>
Prints the GNU license.
</p>
<pre>
 function copyleft() {
    about();
    print ""
    print "This program is free software: you can redistribute it and/or modify"
    print "it under the terms of the GNU General Public License as published by"
    print "the Free Software Foundation, either version 3 of the License, or"
    print "(at your option) any later version."
    print ""
    print "This program is distributed in the hope that it will be useful,"
    print "but WITHOUT ANY WARRANTY; without even the implied warranty of"
    print "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
    print "GNU General Public License for more details."
    print ""
    print "You should have received a copy of the GNU General Public License"
    print "along with this program.  If not, see &lt;http://www.gnu.org/licenses/>."
    print ""
 }
 function about() {
    print Opt["What"] " : " Opt["Why"];
    print "Copyright " Opt["When"] " " Opt["Who"] " (GPL version 3)";
 }
</pre>
<p>
by Tim Menzies
